Citadel Mariner FRMN1220NKL 12-Gauge 18.5" 4-Round Walnut Shotgun

The Citadel Mariner 12-gauge pump-action shotgun is built for home defense and tactical applications where reliability and quick follow-up shots matter. With an 18.5-inch barrel, compact 39-inch overall length, and a sturdy walnut stock finished in nickel, this shotgun delivers classic handling with modern-ready features. The 4+1 magazine capacity (4 rounds in tube, 1 in chamber) keeps you combat-ready, while the full-length barrel heat shield protects your support hand during sustained fire and keeps the gun cooler under pressure.

This is a no-nonsense working shotgun for shooters who want a dependable pump gun without excess bulk. The nickel finish resists corrosion—important if you're operating in harsh conditions—and the walnut furniture gives it a timeless look. Whether you're running low-light home-defense drills or setting up for a tactical course, the Mariner handles like a gun that was designed to be used, not just owned.

Sighting options include an adjustable rear sight mounted on an integrated Picatinny rail for optics or backup iron co-witness, plus a blade front sight for quick target acquisition. The shotgun ships with three choke tubes for flexibility across different loads and distances, and a side shell holder keeps ammunition accessible during reloads. The gun accepts 2¾- and 3-inch shells, giving you load options across buckshot, slug, and birdshot for hunting or sport shooting.